How to run and preview the C4 diagrams

1. Navigate a console or terminal to this folder and run docker-compose up.
2. When the container is up, open http://localhost:8080.
3. Any update on the workspace.dsl file takes immediate visual effect upon page reload.
4. To stop the container, send a Ctrl+C signal to the terminal. Or run docker-compose down in the doc folder if you started running the container with the -d flag.